Not sure what you're getting at. I'm sure I could find some, or buy some. All of the needles I currently have are blunt tipped though. Strictly for measuring chemicals.
I've done a lot of drugs in my day, yes even heroin, but that was a long time ago - and I never messed with needles. That was all a LONG time ago, and I've moved on... I've done them all, and lived to talk about it.
I might have to PS the puncture site, but I haven't done the searches yet to see what I should be aiming for.
edit
If anybody ever wants to talk about it, I've done it all, and I don't even regret it... Not saying you should do it, just that I know what it's like. Never was into pills or needles though. If you could smoke it or snort it, I did it.
But like I said, that was a long time ago.
Alcohol and tobacco is another matter entirely. Both are more addictive than cocaine, IMO...